Where can I get "InfoTable Selector Extension"?

Hello, I am looking for a way to deselect row in grid.
I found "InfoTable Selector Extension" can do it.
The Exctension is bundled with the PTC Windchill Extension.
(https://marketplace.ptc.com/apps/193496/ptc-windchill-extension#!features/Required_Bundled_Extensions)
I downloaded "PTC-Windchill-Extension-for-ThingWorx-1-9-1.zip" from Marketplace.
But zip file don't contain "InfoTable Selector Extension".
Where can I get "InfoTable Selector Extension"?

Nakaya